Rotary engine.



F. MARION.

ROTARY ENGINE.

rPmimJloN ymin OCT :5. 1914,

glnvculolz, Y Frank Marnn.

" nfkonlcq FY. MARION, ROTARY ENGINE` APPLICATlON FILED OCT. l. |914,

Putented Mar. 20, 1917.

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L6? f ii HHHIIII Frank Marian'.

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v F. MARION.'

' ROTARY ENGINE.

APPLicATmN FILED OCT. la. |91,

1.21 9,829. Patented Mar. 20,1917.

4 SHEETS--SHIET 3.

Juventa@ Fran K Marin n.

@mi ffm-con zo F. MARION;

ROTARY Emmi.

PPLICAUUN FILED OCT-16, HHM n PutentedMzu. 20, 1917.

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` Frank Marimn.

UNITED STATES PATENT oEEIcE.

FRANK MA-RION, 0F HARDWICK, VERMONT, ASSIGNOR 0F E EVEN TEEN TWENTY- FOURTHS TO FRANK T. TAYLOR AND ONE-TWELFTH '10 V. W. RAND, BOTH 0F HARDWICK, VERMONT.

ROTARY ENGINE.

Specification of Letters Patent. Pz] tnted Mar, 20, 191 '7.

Application led ctober 16,1914. SerialA No. 866; 71. v

To all whom it mag/concern: Be it known thaty I, FRANK MARION, a citizen of the United States, residing at Hardwick, in the county of Caledonia and State of Vermont, have invented certain new and useful Improvements in Rotary Engines, .of'which the following is a specification.

The invention has for an object to give an improved construction of rotor piston and abutment in the type of engine illustrated which will be adapted to use in an in- Aternal combustion engine, and will coperate fin 4a manner of peculiar advantage when used with steam, as well. A further object is to provide a desirable construction of in,

let for operating fluid. It is also a purpose to provide a packing of an` efiicientcharacter `for use in engines of this construction.

`An important object is to give a compact construction whereby the various elements required in'such an engine maybe actuated with a minimum of operative connections, and readily accessible for adjustment and repair. Additional objects and advantages will appear, some of which will be apparent from the following description of one embodiment of my invention, and from the drawings thereof, in which,

Figure 1 is an elevation of one side of the device with the cover plate removed.

Fig. 2 is a rear elevation thereof.

Fig. 3 is a view from one side at right angles to the first two figures. ,A

Fig. L is a similar View from the opposite side.

abutment `the chambers being so located that their boundaries intersect, whereby communicationis formed between thel chambers for a' purpose which' will appear.. The inner faces of these chambers'are smoothly finished, and

I concentric `with the vchambers a suitable -watersphace .14 is formed in the casting 11 open outlet, 15 and 1U. Thecastingll is concen tric at the upper part with the chamber l2,

and for' closil'ig the chanilier and water spaces front and lack plates 17 and 18 are provided,conforming to the shape of the casting ll and bo led thereto in a suitable way. These plates'. are provided ywith suit able bearings 19 ard 20, concentric with the chambers 12 and lrespectively, in the upper of which the-e is mounted the main shaft 2l and the lo wer of which support the tubular shaft 22. Carried by the shaft 21 there is a piston 23 having a cam surface 24 of gradually incre Ising radius terminating in an abrupt extension or head 25, the outer part of which is disposed to lie close to the perimetral faceof the chamber 12 and parallel therewith fora short distance. The pistoncorresponds in thickness to the thick- .ness of the casting 11 from front to back. The piston may be. solid or hollowed out suitably for lightness. The head 25. is pro- .vided with a transverse groove 26 across its other extends acrc ss the head 25 in the grooves 26 a little :nore than half way, the adjacent portions of the outer arms being mortised in overlar ping relation, as shown y at 29. At the junctions of the groove 26 and its extension diagonal seats 3Q are formed,

in which springs 151 are set bearing .out-` wardly on the plates 28', whereby they are simultaneously borne against the'lateral and y perimetral surfaces of the chamber. Carried by each of the plates 17 and 18, there are concentric packing rings 32 fitted in suitable, grooves in the plates, having suitable springs therebe hind bearing them outwardly against the piston, and being closely adjacent 'oroverlapping the inner arms of the plates 28. These rings are preferably split, with mortised overlapped ends, as at 33. The work side 34` of the head 25the one, against which the gases or fluid act to rotate the piston, is Icurved 'outward beginning closely adjacent the l groove 26, this curve being Vsuited t). the the engine. The sha Et 22 is tapered through- -oposed' speed of out that portion projected through the chamber I3, whereby it may be adjusted to compensate for wear with an oscillating abutment block 35, rcvoluble thereon, and

fitting snugly in the chamber 13. The shaftl Q2 is held iu place by a nut 3G engaged thereon outwardly of the tapered portion and bearing.r against the plate 18.

The block is recessed at its lower part, and has engaged therewith a spring 37 extending tangeutially therefrom and anchored to the castinlg 11 by a screw 38 which may be adjusted rom the exterior. The block is cut away at its upper side to form a recess 39 having a curved face formed and arranged to aline with the outer :face of the chamber 12 at times, concentric therewith. The radius of the chamber 13 is greater than the distance from its center to the point of minimum radius on the piston Q3. Thus under action of the spring one side of the recess 39 will always bear against the piston, the, direction of tension of the spring being such that the side in the direction of rotation ofthe piston will bethe one engaged.

The shaft 22 at its forward end is connected by a rotating' joint to a supply pipe 40 having lateralsl and 42, the one leading to a -source of expansive fluid, and having a controlling valve 43, in addition to anantomatic intermittent 4valve 14, t0 bc 'depso scribed, while the other Ilateral leads to a compressor tank 45, and has an interposed cut-otf 46.- The shaft 22 is provided with a timing lever 47 by which it' may be slightly `rotated. A lateral port 48 is also formed there-in and intermediately of the -conical ortion, and the block 35 hasv formed there- 1n a large pocket 49 open at the inner side for communication with the port 48.` This pocket isslightly enlarged toward its outer end, and opens through the periphery of the block -in that part which lies in the chamber 12, although apart of the pocket may be initially without the chamber 12.' Across the periphery of the block 35 on each side of the pocket 49'there are formed grooves 50 and connecting lat-erals 51,'in the sides of the block, in which there are set small'packin plates 51 similar to the ones first describe and having similar functions, being held outwardly at all sides by. means of four' small helical springs 52 confined by the .plates 'A small pocket 53 is formed in the side of. thcrchamber 13 adjacent the point of itscommunication with the chamber 12 and the .rog'lected portion ofthe abutment, in whic lt ere is engaged from the exterior 'of thecasing 11 a spa-rkv plug 54.

The cum'e ofthe work face is such that under action of the lspring 37 the block35 will bear against the work faceI of the pis ton, assistin inits rotation, andmainta-inlng a, close` t therewith throighout the actlon.' On the opposite side o the chamber 13 from the spark plug there is formed a exhaust port 55 inimediately adjacent th periphery ot the chamber 12.

("olnmunicatiug with the chamber 12 at a point suitably removed from the area of liigh compression there is a lateral duct 5G formed in the casing and having a suitable small. pipe engaged therein leading to an oil cup 57, from which an oil supply pipe 58 leads to the small opening v59 in the perimetral face of the chamber 1Q close to the abutment block.- Suitable check valves 58 are incorporated in the duct and opening 59. A large gear (i0 is mounted on the main shaft immediately outward of the plate 17, and also an eccentric 6l, engaged with which is the rod GQ, the outer end of which opera-tes the contact lever (i3 which, adjacent one limit of its increment, closes the ignition circuit by bringing one of thc spaced contacts (i4 oi a circuit closer against the other. The details of this circuit and apparatus are not. illustrated, suitable. forms being fie miliar in the art. The eccentric is also provided with a wrist adjustable in a concentric slot 66 in the eccentric and held by a nut (S7 engaged in the outer end ofthe v At the upper part of the plate 17 there is mounted a gear 71 meshed with thel large gear 60 having a beveled outer part meshed with a bevel gear 72 in a centrifugal governor of suitable construction also mounted on the. plate 17, and operating the throttle valve 73 in the pipe 40.

At one side, preferably opposite the side of which the spark plug is located', a pumpdrivin gear 74 is mounted on the plate '1-7 inim'es with the gear 60, having eccentric connection with the piston of a. pum 75, by

which the gas supplied at 76 is maintained at a-suitable preure in the charge tank-45, Afrom which connection is made directly to the pipe 42. 4'The tank is provided with a safety 'control by which the supply valve 7 8 for the pump 1s closedwhen the presso?! reaches a predetermined degree. At'theibvpposite side of lthe motor isloca-ted gma'g; 'Hineto 79,' operated by a; geen' 80'l with' arrangement of driyiig/ gem-s. around ,the

gear V60 for 'thesfilfuxiljnry'."iapparatus is of the provision oa-galt 'power plant inaaa moval of any ofthe 'auiarie without'interferencje with tl'eillers. In the use 'citric engine as an internal pact. form' and enabling the H epfrmratffr cnt oil occurs just before thiv 35 expansive action et the fluid.

(.ainibustion engine it is only necessz'iry to close the `valve 4151i and openvthe one 4G,

and have the wrist (.i'i so adjusted that thek shaft QQ rotated to move the port ,11:8 te the 5 outer limit of its movement before occurrence of the `sliiark, the spark timer having also been adjusted to accord with the speed `desireil, the. engine being turned until the head 25 passes' onto the block which is 10. thereby moved to bring the side 'of the vrecess 39 into alinement` with the curved face of the chamber 12, and the pocket 49 alined with the port 4S. moved to cnt off this communicaition, which )ark isfmade. The spark occurs ust before the work face of the head passes beyond they block, an'd when the latter is thusy released and rotated by' the .ing 5:57, the pressure of the expanding from the pocket 49 drives the piston. i Gases in advance of the head during its rotation are allowed free escape through the exhaust port. 'l he operation of the governor to regulate the speed will be 25 understood without exlilanaton.

When the invention is to be'iised as aV steam migine, the valve 46 is closed yand the one 43 opened, and the i'iecessary connections made with a source of expansive Huid.

s0 The wrist 65 is also so adjusted that the port t8 is at full opening when the block springs behind the head 2f), and will be operated to close at the desired time to per- `mit full advantage to be derived from the The eccentricity 24; in the piston. in advance ofthe head coperates to this end, by nioving tlie-blockv to carry the pocket 4S) out of registry with the port 48. In fact this eccentrieity maybe utilized alone for that purpose, in some cases, and the automatic ,movement of the shaft 22 dispensed with by disconnecting the link (Si) from the wrist G5.

I have thus Vgiven a construction of en- 45 gine which may be constructed with great ease, which, willoccupy lint `little room and involve a minimum of expense for its installation, it being unneccessary to provide separate niountings for other devices such. as 'the magneto, the governor, valve timer,

spark tinnen (aimpressor. Also there are parts essential. to its use with steam or as an internal caimbustion engine, which are peculiarly ellicient in both applications.

65 In order to. facilitate the timing of the cut--o' and its adaptation kreadily to steam or gas, the eccentric may be slotted as at `66 and a bolt G5 engaged therethrough with the main gear a nut being provided on 60 the bolt to clamp the eccentric ladjustably to advance or retard its action..

What is claimed: 1. An engine of the class described comprising a casing having a circular chamber therein, "a piston revoluble concentrically f first, an

The shaft QQ is being therein, and inch ding a head engaging close against the outer side of the chamber, a second circular chamber intersecting the abutmen"y member revoluble concentrically therein formed to clear the lil-st chamber at one liosition, and having a portion to bear aga'nst the piston throughout rotation of the latter,lyieldable means engaged with the` `ibutment member for engagement theiroi with the piston, said head having an inclined forward face to fend the abutment membe' into position to clear the first chamber, a hollow duct member `engaged within the abutment member, and

yhaving a. lateral port opening against theliiner surface of the abutment member, said abutmiv-nt member having a` pocket therein opening into "the first chamber when the abutment member isA projected chamber, and ope 'iing against the duet member for registeralion with said port atcei tain positions oi the abutment and ductA members, an ignil ion dev ice-fin thel .perimeter of the second chamber.adjacent the pocket for ignition of i charge thereinat times, operative connections between the piston and the duct'ineiiiber to change the iosition of vthe poit for the' purposes descri ed, in-

cluding a variabe stroke device, means tooperate the igniti'in device, and fluid supply connections with the duct member.

2. Tn a device of the class described, a

'-.asing having a circular chamber therein,

a (aiiicentrically revoluble member in `the chamber having i peripheral port, circumferentially spaced transverse grooves being formed in the )eriphery ofthe member, closely adjacent `:lic port,`and on opposite sides thereof, aid 'connecting grooves in iacli side ofthe member, four substantially L-shaped packing platesvhaving overlapped` ends slidably engaged in the grooves, and means provided whereby the plates are borne outwardly "'or the. purposes described.

3. An engine ncluding a piston and al chainbered member receiving the piston for operation therein, means for admitting anA actuating iuid t( the chamber includingia movablev member having a passagethere' through adapted to communicate with the chai'nber, a rotatable duct member! fitted ,to said movablenieiiiber and having a lateral port, arranged to register with the said passage` at certain jiositions of the movable 4member and duct member, aarotating mem ber oieratively ciiiinected with the piston, an u justable ecc entric device thereon and operative'conned ions between said eccentric device and the duct,

4. An engine cimprising a body casting into the having a circular chamber therein closed on each side to form a casing, a piston revolubly mounted in the chamber, 4shaft carrying the piston and having an end yproject# ing through at les st one side of the casing a.

large gearcarried thereby close against thel casing', a plurality of spaced gears mounted on the casing and meshing with the large gears, and respectlve auxiliary devices fixed to the casing and operativelyconnected with f said last named gears for maintaining and controlling act-lon of the engine.

5. lu a device of the class described a cas'-v lng having a circular chamber a revoluble member snugly fitted in the chamber and having a port, transverse grooves formed in the outer face of the revolulile member on opposite sides of said port, connecting grooves being formed in the side of the revoluble member outwardly of its axis,and packing devices each having one arm disposed in one of the transverse grooves and in a communicating connecting groove conforming to the contour of the groove, opposed ends of the packing members being in overlapped relation fol-"the purposes described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK MARION.y VVtneSSeS: i

B.. J. MULCAHY,

WALTER A. DU'x'roN. y 

